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01-19-2013, 01:28 AM | #1 |
Registered User
Join Date: Jan 2013
Location: Pittsburgh pennsylvania
Posts: 56
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1986 k20 Rear Brake Problems. PLEASE HELP!!
i lifted my truck 9 inches (fully suspension) and i have this mechanism on my truck that connects to the frame and down to the housing that the brakes run through and i guess its for more stopping power when there is added weight. Anyways i had to unbolt it to raise the truck and now since it hangs there and its not long enough my truck stops instantly with vary little brake at all. is there anyway to get ride of the mechanism? also i know if i extend it that should work my i have no idea what position it was in to make it work right with no weight. i also need to do it without the bed because i have no bed right now. the bed adds weight. Please Help!!
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01-19-2013, 10:32 AM | #2 |
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Join Date: Dec 2010
Location: Pittsburgh, PA
Posts: 1,009
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
Lots of people simply eliminate it with no adverse effects. Post pics of your rig! And it's good to see another Pittsburgh guy on here! I may have seen your truck around, if you're close to North Hills.
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Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400 |
01-19-2013, 10:10 PM | #3 |
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Location: Pittsburgh pennsylvania
Posts: 56
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
I live in the south hills. right around baldwin dormont greentree castle shannon and mt lebanan. i will start a thread on my build and send you a link!
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01-19-2013, 11:54 AM | #4 |
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Location: edgartown mass
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
if you are going to tow with it i would say keep it they do work well. if you get ride of it you will need a proprtioning vale that is adjustable
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1986 c20 "the hillbilly" 350 sm465 3.42gears 21mpg at 70mph 1985 k30 "the ice cream truck from hell" no rust az truck 197-8??? c30 "ramp truck" 454 1978 monte carlo 350 350th with 2.73 gears. no rust. sc car |
01-19-2013, 12:43 PM | #5 |
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Location: Spokane, Washington
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
Remove the arm from the valve to the axle. Then remove the valve from the frame and run the hard brake line that comes from the front of the truck directly to the soft line. You will actually have better rear brakes when you are done. That is how I have done all the ones I have lifted.
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01-19-2013, 09:59 PM | #6 | |
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Location: Pittsburgh pennsylvania
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
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01-19-2013, 11:31 PM | #7 | |
Windy Corner of a Dirty Street
Join Date: Jun 2003
Location: Pueblo West, Colorado
Posts: 2,926
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
Quote:
I just did this to my Suburban today. 1) Remove the brake line that attaches to the rear axle and flip it around so the hose has more reach towards the front of the axle 2) Remove the Height Sensing Proportioning Valve and extra line that goes from the valve to the brake hose 3) Connect the brake hose from the axle to the main brake line that used to go into the Height Sensing Proportioning Valve 4) Bleed brakes That is it! The burb stops like it should now instead of darting all over road during braking.
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Current vehicle collection: 1978 Chevrolet K10, 8.1L, NV4500, NP205 1989 Chevrolet Suburban, 8.1L, NV4500, NP241 1993 Chevrolet C1500 Sportside, TBI 7.4L, 4L60E 2001 Chevrolet K2500HD, Ext Cab, SWB, 8.1L, ZF 6 speed 2014 Chevrolet Impala LTZ 3.6L Vortec 8.1L because life is too short to tolerate underpowered vehicles
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01-19-2013, 11:51 PM | #8 | |
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Location: Pittsburgh pennsylvania
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
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01-19-2013, 10:37 PM | #9 |
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Join Date: Dec 2010
Location: Pittsburgh, PA
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
Sounds good, I've worked all through the south hills. It can be a real nightmare around rush hour! I'm in the north hills, about a mile and a half from Ross Park Mall. That's the only real landmark I could think of in the north hills, so I apologize for that! I'm going to have to look at my 83 and see if my load adjusting setup is still intact, I forget. It hasn't been on the road in 7 months now due to a cab swap that turned into a body off restoration + completely new wiring.
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Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400 |
01-19-2013, 11:55 PM | #10 | |
Registered User
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Location: Pittsburgh pennsylvania
Posts: 56
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
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01-20-2013, 09:14 AM | #11 |
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Join Date: Dec 2010
Location: Pittsburgh, PA
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
Host them all on www.imageshack.us and then they should work.
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Steve Member of the Foot Pedal Club '83 Chevy K20: 6" Rough Country, 3" Performance Accessories BL, Bushwacker Cutouts, 38x15.50 Mickey Thompson Baja Claws, 350 HP 350 crate engine from Jegs, Turbo 400 |
01-20-2013, 04:03 PM | #12 | |
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Location: Pittsburgh pennsylvania
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
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01-20-2013, 05:56 PM | #13 | |
just can't cover up my redneck
Join Date: May 2004
Location: Columbus OH
Posts: 11,414
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
I have always extended the linkage by the same amount as the lift. Just measure/record the angle of the lever before starting. The thing is essentually a regulator that takes braking away from the rear, when unloaded, to help eliminate rear wheel lock-up.
It might even pay to make it adjustable, for that same reason.
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01-22-2013, 11:44 AM | #14 |
78K & 79C Jimmys
Join Date: Nov 2009
Location: Ottawa Ont CANADA
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
as mentioned
in hard braking,it will keep the back from lifting and skidding when light this idea is used in many other makes of vans/trucks
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John 1978 GMCJimmy4X4-350/203 1979 GMCJimmy4X2-305/350 |
01-25-2013, 12:33 AM | #15 |
Registered User
Join Date: Jan 2013
Location: Pittsburgh pennsylvania
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Re: 1986 k20 Rear Brake Problems. PLEASE HELP!!
If i add disk brakes to the rear will it effect anything
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